Vocabulary

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WORDS
 DEFINITION
 SAMPLE SENTENCES
UFO
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Unidentified Flying Object
spacecraft
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A spacecraft is a rocket or other vehicle that can travel in space.
 It was the first manned spacecraft
astronaut
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An astronaut is a person who is trained for travelling in a spacecraft.
 After Armstrong became an astronaut in 1962, he was trained for 4 years for the Apollo program